using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Configuration;
using System.Data.SqlClient;
using System.IO;
using NPOI.HSSF.UserModel;
using NPOI.SS.UserModel;
using System.Data;






if (FileUpload1.HasFile)//判断是否包含文件
        {
            ImportExcel(FileUpload1.FileBytes);
        }

public void ImportExcel(byte[] b)
    {
        System.IO.MemoryStream ms = new MemoryStream(b);
        HSSFWorkbook workbook = new HSSFWorkbook(ms);
        ISheet sheet = workbook.GetSheet(workbook.GetSheetName(0));
        for (int i = 1; i <= sheet.LastRowNum; i++)//遍历行
        {
            string str = "";
            for (int j = 0; j < sheet.GetRow(i).LastCellNum; j++)//遍历列
            {
                str +=  sheet.GetRow(i).GetCell(j).ToString() + ",";
            }
            str = str.Substring(0, str.Length - 1);//
            //=========================添加数据库======================
            
            //=========================================================
        }
    }

*类库去我的下载里面下载

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Excel导入数据库,布布扣,bubuko.com

Excel导入数据库